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From: Jacob Sparre Andersen on 26 Jul 2010 09:50
Jonathan <johnscpg(a)googlemail.com> wrote:

> I did a few runs with the linux: time ./bench
> on an empty machine and got numbers like this:
>
> 0m3.612s 0m3.604s 0m3.620s 0m3.612s 0m3.620s 0m3.604s

Looks like we have a nice symmetric case where the average and the
median are the same. ;-)

> Some programs fluctuate hugely in running time .. never figured out
> why.

It may be something as simple as which core the program happens to be
running on. Or which operating system processes are running in the
background.

In general it is a good idea to report an average of at least three
timing measurements and the standard deviation of the measurements.

Jacob
--
Jacob Sparre Andersen Research & Innovation
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